# xZip vs Calculator Sci Unit Converter

The clearest difference is price: xZip at Free against Calculator Sci Unit Converter's $1.99. xZip also leads on rating (5.0 vs 4.0) and update cadence (every 8 days vs monthly). Calculator Sci Unit Converter's advantage is in-app purchases (none vs 1) and review sentiment (67% vs 50%). On ratings volume, ads, monetization model and device support there is nothing between them.

xZip is free to download; Calculator Sci Unit Converter costs $1.99 up front. xZip sells 1 one-off in-app purchase. Calculator Sci Unit Converter asks for nothing beyond the download.

xZip holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews complicate that: 50% of xZip's written reviews are positive against 67% of Calculator Sci Unit Converter's, so the app with the better star average is not the one people write more warmly about.

xZip ships an update every 8 days, Calculator Sci Unit Converter monthly. The most recent releases landed on September 28, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | xZip | Calculator Sci Unit Converter |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/xzip/id1573682863/reviews)** | [4.0 (2 ratings)](https://appshunter.io/ios/app/calculator-sci-unit-converter/id6772422667/reviews) |
| Number of ratings | **3** | 2 |
| Positive reviews | 50.0% of reviews | **66.7% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 8 days** | Monthly |
| Monetization | Paid | Paid |
| Size | 8 MB | 25 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [跃洋 王](https://appshunter.io/developer/1544944093) | [Xiamen City Fanyou Network Technology Co., Ltd.](https://appshunter.io/developer/1842524161) |

## What reviewers say

### xZip

[App page](https://appshunter.io/ios/app/xzip/id1573682863)

This utility app allows users to easily decompress and extract files from various archive formats like zip, rar, and 7z. It supports previewing file information within compressed packages and offers separate extraction of individual files.

**Highlights:** Decompress various archive formats (zip, rar, 7z, xz), Extract files from compressed packages, Preview archive file information, Free and ad-free experience

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Unlock | $2.99 | one-time |


### Calculator Sci Unit Converter

[App page](https://appshunter.io/ios/app/calculator-sci-unit-converter/id6772422667)

This app offers a robust calculator with both standard and scientific functions. It includes a unit converter for various measurements and currency, plus helpful shortcuts for percentages, taxes, and tips. All calculations are saved locally for easy access.

**Highlights:** Standard and scientific calculator modes, Unit conversion for length, weight, temperature, currency, Full calculation history log, Percentage, tax, and tip calculation shortcuts, Offline functionality, Optimized for phone and tablet

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is xZip free?

xZip is free to download, with in-app purchases available.

### Is Calculator Sci Unit Converter free?

Calculator Sci Unit Converter costs $1.99, with no in-app purchases.

### Which has better reviews, xZip or Calculator Sci Unit Converter?

xZip is rated higher. xZip averages 5.0 out of 5 from 3 ratings, while Calculator Sci Unit Converter averages 4.0 from 2 ratings.

### Do xZip or Calculator Sci Unit Converter have ads?

Neither xZip nor Calculator Sci Unit Converter shows ads.

### Which is updated more often, xZip or Calculator Sci Unit Converter?

xZip ships an update every 8 days, and Calculator Sci Unit Converter monthly. Most recently, xZip was updated on September 28, 2026 and Calculator Sci Unit Converter on October 11, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*